Typewriting machine



1941- c. T. JACKSON TYPEWRITING MACHINE Filed Jan. 26, 1940 2Sheets-Sheet 1 INVE TOR BY m mf ATTORNEY Dec. 30, 1941. c, JACKSON2,268,452

TYPEWRITING MACHINE Filed Jan. 26, 1940 2 Sheets-Sheet 2 gVENTORATTORNEY Patented Dec. 30, 1941 UNITED STATES PATENT OFFICE TYPEWRITINGMACHINE Application January 26, 1940, Serial No. 315,733

3 Claims.

This invention relates to typewriting machines and more particularly tothat class of machine,

adapted for using fanfold continuous forms.

The object of the present invention is to provide novel means forsplitting the folds of a fanfold web in a machine of thegeneral typedisclosed in Patent No. 1,132,055. In the present case, the invention isdisclosed as applied to a a modification in which a circular cutter isused as a splitter.

continuous billing machine similar to the one described and claimed inapplication Serial No. 127,684, filed February 25, 1937, by G. H.Beiderbecke. However, it will be understood'that the invention iscapable of general application and not limited in its use to thestructure disclosed in the above patent or the one disclosed inaforesaid application.

An object is to provide a web splitter which at will can be placed inany desired position on the carbon sheet anchoring blade to accommodateforms of different widths without requiring the use of tools.

Another object is to provide a web splitter which has a relatively thinsharp edge so as to have a high efliclency in splitting the webs.

An object is to provide a splitter adapted to guide the iormsbycooperating with the insides of the folds.

An object is to provide a combined splitter and carbon sheet anchoringclip.

Further objects of the instant invention reside in any novel feature ofconstruction or operation or novel combination of parts present in theembodiment of the invention described and shown in the accompanyingdrawings whether within or without the scope of the appended claims andirrespective of other specific statements as to the scope of theinvention contained herein.

In the'drawings: 1

Fig. 1 is a plan view of the machine showing the splitter in place onthe blades of the carbon stripping truck.

Fig. 2 is a large scale plan view, partly broken away, showing a. carbonsheet anchored to a carbon blade by means of the combined splitter andcarbon sheet anchoring clip comprising the present invention.

Fig. 3 is a vertical section of the line 3-3 on Fig. 2.

Fig. 4 is a plan view somewhat similar to Fig. 2 but shows the combinedsplitter and carbon sheet anchoring clip positioned to render thesplitter ineffective to split the fold of a. web.

Fig. 5 is a view similar to Fig. 2 but showing Fig. 6 is a view of theright-hand end of the combined web splitter and carbon sheet anchoringclip disclosed in Fig. 5.

In Fig. 1, there is shown inplan view a continuous billing machineincluding a typewriter l0 and a carbon stripper carriage H which isreciprocable toward and away from the typewriter carriage E2 on a trackl3. This track is removably attached at its front or left-hand end(Fig. 1) to a rod l4 forming part of the carriage. The truck ii isprovided with some means, such as a handle l5, by mean-s of which thetruck may be moved rearwardly of the carriage or to the right (Fig. 1)to retract carbon sheets anchored to the truck H. The track la ismovably supported near its rear end upona rail 56 which forms part of aframework l1 removably attach'ed at id to the base of the typewriter H0.The track i3 is mounted on the rail is by means of anti-friction rollersl9 carried by a bracket 20 secured to the underside of the track 43 andis provided with a toothed stop bar 2t having adjustable stops like 22to limit the travel of the truck l l. e

Removably mounted on the truck H is. a bar 23 having two posts 24 whichprovide a means of mounting the carbon sheet anchoring blades 25 on thetruck H. In the present case, each blade 25 is slotted at both ends toreceive the posts 24 whereby the blade is held stationary withrespect tobar 23 at both ends but is movable with truck H.

The fanfold forms 26 are led from a suitable stack (not shown) beneaththe right-hand end of the track 53 upwardly and over tube 21 on whichare adjustably slidably mounted slide guides 23 for the edges of theforms. Thence,

the now separated plies of the forms pass.

between the blades 25, the carbon sheets 260. over the top of the truckII, and around the platen 29 which is rota-tabiy mounted in thecarriage. The platen, as usual in such machines, is displaceably mountedso as to be movable to a position to permit the forms 26 to bestraightened as a preliminary to retracting the carbon sheets 26a byrearward movement of the truck H effected by means of the handle 25 in awell known way. Since, in'the present case, the blades 25 must passthrough the folds of the fanfold. web, it will beunderstood that inloading the machine, the .side folds between the first few sets of formsare split back along the line of fold far enough from the leading edgesof the first set of forms to permit the blades 25 and the attachedcarbon sh'eets 26a to be inserted. The structure so far described is nowwell known in the art and is the same as the structure disclosed inaforesaid Beiderbecke application.

The operation of such a machine is well known in the art; however, abrief explanation will be given to enable the action of the splitterblades hereinafter to be described to be more readily understood. Itwill be assumed that Fig. 1 shows the condition of the machine when itis in readiness for typing the first set of a package of continuousforms, with the carbon stripper truck ll fully retracted. While theforms are being typed line-by-line, the tension applied thereto and tothe carbon sheets 25a by the line spacing movement of the platen 29causes the truck H to be advanced step-by-step toward the platen, thatis, toward the left in Fig. 1. After a set of forms has been completed,the operator raises the platen by liftinga hand lever 30 and grasps theleading edges of the forms with the right hand drawing them against anadjustable leading edge gauge 3|. The operator next grasps the handle l5with the left hand and pushes the truck II to the rear of the machine,that is, to the right in Fig. 1, as far as it will go. As well known,the leading edges 26b of the carbon sheets 26a terminate far enoughshort of the leading edges of the forms to permit the operator to graspthe forms without grasping the carbon sheets. After the carbon sheetshave been fully retracted, the platen is lowered and the completed setof forms may be severed from the succeeding blank set by means of atearing knife 3Ia provided for the purpose. tomary to provide the formwebs with transverse rows of perforations between sets of forms.

For the purpose of anchoring the carbon sheets to the blades, it iscustomary to use clips of various kinds, the carbon sheet being foldedaround the blade and a clip pushed over the carbon sheet. When the formsare of the fanfold type, as has been assumed to be the case up to thepresent point, it is common practice to provide some means to split thefolds apart so that, when a completed set of forms is severed, some atleast of the forms will be severed as loose sheets and will not requirea second severing operation after the first.

ing the splitter on the blade 25.

To facilitate this operation, it is cus- The present inventioncontemplates the provision of a combination splitter and carbon sheetanchoring clip which will simplify the procedure in loading the machineand'reduce the number of special parts required. One form which thecombined splitter and carbon sheet anchoring clip may take isillustrated in Figs. 1 to 4.

The splitter body may comprise two thin sheet metal members 32 (Figs. 2and 3) which may be secured together along the edge 32a by any suitablemeans such as welding, soldering; or riveting. Secured between the twomembers 32, as clearly shown in Fig. 3, is a cutter blade 33 which isthin and narrow and is substantially uniform in width and thickness,except at its right-hand end (Fig. 2). This end of the blade 33 isformed like the barb of a fish-hook with the web splitting portion 33aformed asa cutting edge making an acute angle with the longitudinal axisofthe blade 33 and the barbed portion extends upwardly between themembers 32. Above the cutting portion 33a, the members 32 are so shapedas to form web guide portions 32b designed to run inside the fold whichis to be split by the cutting edge 33a. For. this purpose, the portions32b each has a straight edge 32c extending upwardly from the cuttingedge 33a at right angles to the axis of the blade 33 and whichterminates in a rounded edge designed to slide smoothly along the lineof fold so as to hold the line of fold straight and guide the fold tothe cutting edge 33a.

The edges 32d opposite the edges 32a are flared, as shown most clearlyin Fig. 3, to facilitate plac- The carbon sheets 260. are folded orlooped about the bar 25 for a short portion of their length and thecombined splitter and carbon sheet anchoring clip is pressed on the barover the fold of the carbon sheet as shown in Fig. 3. The lower edge ofthe blade 33, by abutting against the upper edge of the blade 25, actsas a stop to prevent pinching the carbon sheets so tightly as to makethem liable to be torn, and also functions as a means of squaring theedges 320 of the guide portions 322) with the fold'of the web with whichthey cooperate.

When it is desired to split folds, the combined web splitter and clip ispositioned in relation to the fold in the web as shown in Fig. 2 wherebythe cutting edge 33a projects well beyond the line of fold with theportion 32b engaging the fold to be split. It may be desired to splitsome folds and not others and for that purpose the combination splittermay be set in relation to the line of fold as in Fig. 4 wherein thecutting edge 33a is completely inside the fold and ineffective.

As shown in Fig. 3, the members 32 are folded longitudinally along linescoinciding substantially with the upper edge of the blade 25 and thelower edge of the blade 33, which is relatively thinner than the blade25, whereby the sides of the combination clip evenly press the carbonsheet against sides of the blade 25. The members 32 are also similarlyfolded around the upper edge of the straight portion of blade 33 andaround a part of the cutting portion 330. In Fig. 1, two of thecombination clips are shown disposed to properly split folds which areopposite each other, the position of the splitters being alternated tocooperate with alternate folds of the webs.

In Figs. 5 and 6, there is shown a modified form of combination clip andsplitter, the clip body in this case comprising two strips 34 which aresecured together along their upper edges and folded around a blade 35 ofsubstantially the same length, width, and thickness as the blade 33 butdiiferlng from the latter in not having a cutting edge. The members 34instead of having 'their lower edges flared and continuous as in Fig. 2may be formed with portions 34a which are shaped in section like themembers 32 but are spaced along the bar at intervals to provide a,plurality of clip elements for engaging the carbon sheet and holding itsecurely on the bar. The members each have upward extensions 34bsomewhat similar to the portions 321) in Fig. 2

' 31 passing through both of the members 34. The

Figs. and 6 is particularly suited for fanfold forms which are notperforated along the lines of fold to facilitate splitting the forms.The form shown in Figs. 2 and 3 may be used to split forms which are notperforated along the line of fold but is less well adapted for thispurpose since the wear on the blade always comes at the same spot andtherefore the blade will tend to become dull much quicker than thecircular cutter 38.

While there has been shown and described and pointed out the fundamentalnovel features of the invention as applied to a preferred embodiment andone modification thereof it will be understood that various omissionsand substitutions and changes in the form and details of the deviceillustrated and in its operation may be made by those skilled in the artwithout departing from the spirit of the invention. It is the intention,therefore, to be limited only as indicated by the scope of the followingclaims. 7

What is claimed is:' v

1. In combination with a transfer sheet support bar projecting into thefold of a fan folded web, a unitary clip assembly including a clip bodyand a web splitting element; secured to the clip body and operative tosplit jthe web along the line of the fold in the web; said clip body 2.In combination with a movable transfer sheet support bar projecting intoa fold to be split, a main clip body having portions thereof acting as aclip to clasp to the bar a transfer sheet located in said fold andlooped around said bar, said clip body being movable longitudinally ofthe bar to adjust the position of the clip body, said clip body alsohaving a web splitter adjustable into active position to split said foldat the line of fold by the longitudinal movement of the clip body onsaid bar, said clip body being of fold and in contact therewith to guidethe being. adapted to frictionally clasp a transfer line of fold to thesplitter in a straight line parallel with the line of movement of saidbar.

3. In combination with a manifolding transfer sheet anchoring member, acombination web splitter and clip having web splitting means and meansfor clipping the transfer sheet to said member to frictionally hold thetransfer sheet on said member 'so as to be adjustable on said memberfrom an active position in cooperation with the line of fold of a web tobe split to an inactive position out of cooperation with the line offold to be split, said splitter and clip having a web guiding extensionhaving a straight portion parallel with the line of fold designed toride along the inside of the fold and in close contact with the line offold to guide the fanfoided web in a straight line to the splittingmeans.

CARLTON T. JACKSON.

